plugins/vendor/tavor-MELLANOX.c

	tavor-MELLANOX.c revision ee5d8455d3cff95bf8149073831be4560d60250d
/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */

/*
 * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*
 * Mellanox firmware image verification plugin
 */


#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/sysmacros.h>
#include <fcntl.h>
#include <sys/condvar.h>
#include <string.h>
#include <strings.h>

#include <sys/byteorder.h>

#include <libintl.h> /* for gettext(3c) */

#include <fwflash/fwflash.h>
#include "../hdrs/MELLANOX.h"
#include "../hdrs/tavor_ib.h"

char vendor[] = "MELLANOX\0";

extern int errno;
extern struct vrfyplugin *verifier;


/* required functions for this plugin */
int vendorvrfy(struct devicelist *devicenode);


/* helper functions */
static int check_guid_ptr(uint8_t *data);


int
vendorvrfy(struct devicelist *devicenode)
{
    struct ib_encap_ident   *encap;
    uint32_t    sector_sz;
    int     *firmware;
    uint32_t    vp_fia, vs_fia;
    uint32_t    vp_imginfo, vs_imginfo;
    struct mlx_xps  *vps;
    uint8_t     *vfi;
    int     i = 0, a, b, c, d;
    char        temppsid[17];
    char        rawpsid[16];
    int     offset;

    encap = (struct ib_encap_ident *)devicenode->ident->encap_ident;

    /*
     * NOTE that since verifier->fwimage is an array of ints,
     * we have to divide our actual desired number by 4 to get
     * the right data.
     */
    firmware = verifier->fwimage;

    /*
     * The actual location of log2_sector_sz can be calculated
     * by adding 0x32 to the value that is written in the
     * log2_sector_sz_ptr field.  The log2_sector_sz_ptr is located
     * at 0x16 byte offset in Invariant Sector.
     */
    offset = FLASH_IS_SECTOR_SIZE_OFFSET +
        MLXSWAPBITS32(firmware[FLASH_IS_SECT_SIZE_PTR/4]);

    sector_sz = 1 << MLXSWAPBITS32(firmware[offset/4]);

    if (sector_sz != encap->sector_sz) {
        logmsg(MSG_ERROR,
            gettext("%s firmware image verifier: "
            "Invariant Sector is invalid\n"), verifier->vendor);
        logmsg(MSG_ERROR, gettext("Mis-match in sector size: "
            "device's 0x%X file 0x%X\n"), encap->sector_sz, sector_sz);
        logmsg(MSG_ERROR, gettext("Firmware image file is not "
            "appropriate for this device.\n"));
        /* this is fatal */
        return (FWFLASH_FAILURE);
    }

    /* now verify primary pointer sector */
    if ((vps = calloc(1, sizeof (struct mlx_xps))) == NULL) {
        logmsg(MSG_ERROR,
            gettext("%s firmware image verifier: "
            "Unable to allocate memory for Primary Pointer "
            "Sector verification\n"), verifier->vendor);
        return (FWFLASH_FAILURE);
    }
    bcopy(&firmware[sector_sz / 4], vps, sizeof (struct mlx_xps));
    if ((MLXSWAPBITS32(vps->signature) != FLASH_PS_SIGNATURE) ||
        (vps->xpsresv3 != 0)) {
        logmsg(MSG_ERROR,
            gettext("%s firmware image verifier: "
            "Primary Pointer Sector is invalid\n"),
            verifier->vendor);
    }
    vp_fia = MLXSWAPBITS32(vps->fia);

    /*
     * A slight diversion - check the PSID in the last
     * 16 bytes of the first 256bytes in the xPS sectors.
     * This will give us our part number to match. If the
     * part number in the image doesn't match the part number
     * in the encap_ident info (and pn_len > 0) then we reject
     * this image as being incompatible with the HCA.
     *
     * In this bit we're only checking the info.mlx_psid field
     * of the primary image in the on-disk image. If that's
     * invalid we reject the image.
     */

    bzero(temppsid, 17);
    bcopy(vps->vsdpsid+0xd0, &rawpsid, 16);

#if defined(_LITTLE_ENDIAN)
    for (i = 0; i < 16; i += 4) {
        temppsid[i]   = rawpsid[i+3];
        temppsid[i+1] = rawpsid[i+2];
        temppsid[i+2] = rawpsid[i+1];
        temppsid[i+3] = rawpsid[i];
    }
    logmsg(MSG_INFO,
        "tavor: have raw '%s', want munged '%s'\n",
        rawpsid, temppsid);
#else
    bcopy(vps->vsdpsid+0xd0, &temppsid, 16);
#endif
    logmsg(MSG_INFO, "tavor_vrfy: PSID file '%s' HCA's PSID '%s'\n",
        (temppsid != NULL) ? temppsid : "(null)",
        (encap->info.mlx_psid != NULL) ? encap->info.mlx_psid : "(null)");

    if (encap->info.mlx_psid != NULL) {
        int resp;
        if (strncmp(encap->info.mlx_psid, temppsid, 16) != 0) {
            logmsg(MSG_ERROR,
                gettext("%s firmware image verifier: "
                "firmware image file %s is not appropriate "
                "for device "
                "%s (PSID file %s vs PSID device %s)\n"),
                verifier->vendor, verifier->imgfile,
                devicenode->drvname,
                ((temppsid != NULL) ? temppsid : "(null)"),
                encap->info.mlx_psid);

            logmsg(MSG_ERROR,
                gettext("Do you want to continue? (Y/N): "));
            (void) fflush(stdin);
            resp = getchar();
            if (resp != 'Y' && resp != 'y') {
                free(vps);
                logmsg(MSG_ERROR, gettext("Not proceeding with "
                    "flash operation of %s on %s"),
                    verifier->imgfile, devicenode->drvname);
                return (FWFLASH_FAILURE);
            }
        } else {
            logmsg(MSG_INFO,
                "%s firmware image verifier: HCA PSID (%s) "
                "matches firmware image %s's PSID\n",
                verifier->vendor,
                encap->info.mlx_psid,
                verifier->imgfile);
        }
    }


    /* now verify secondary pointer sector */
    bzero(vps, sizeof (struct mlx_xps));

    bcopy(&firmware[sector_sz / 2], vps, sizeof (struct mlx_xps));
    if ((MLXSWAPBITS32(vps->signature) != FLASH_PS_SIGNATURE) ||
        (vps->xpsresv3 != 0)) {
        logmsg(MSG_ERROR,
            gettext("%s firmware image verifier: "
            "Secondary Pointer Sector is invalid\n"),
            verifier->vendor);
    }
    vs_fia = MLXSWAPBITS32(vps->fia);

    (void) free(vps);

    if ((vfi = calloc(1, sector_sz)) == NULL) {
        logmsg(MSG_ERROR,
            gettext("%s firmware image verifier: "
            "Unable to allocate space for Primary "
            "Firmware Image verification\n"),
            verifier->vendor);
        return (FWFLASH_FAILURE);
    }
    bcopy(&firmware[vp_fia / 4], vfi, sector_sz);
    bcopy(&vfi[XFI_IMGINFO_OFFSET], &i, 4);
    vp_imginfo = MLXSWAPBITS32(i);

    /* for readability only */
    a = (vp_imginfo & 0xff000000) >> 24;
    b = (vp_imginfo & 0x00ff0000) >> 16;
    c = (vp_imginfo & 0x0000ff00) >> 8;
    d = (vp_imginfo & 0x000000ff);

    /*
     * It appears to be the case (empirically) that this particular
     * check condition for ImageInfoPtr doesn't hold for A1 firmware
     * images. So if the ((a+b+c+d)%0x100) fails, don't worry unless
     * the contents of the GUID section do not match the Mellanox
     * default GUIDs 2c9000100d05[0123]. The A2++ images also have
     * these default GUIDS.
     *
     * Unfortunately we can't depend on the hwrev field of the image's
     * Invariant Sector for another level of confirmation, since A2++
     * images seem to have that field set to 0xa1 as well as the A1
     * images. Annoying!
     */

    if ((((a+b+c+d) % 0x100) == 0) &&
        (vp_imginfo != 0x00000000)) {
        logmsg(MSG_INFO,
            "%s firmware image verifier: "
            "Primary Firmware Image Info pointer is valid\n",
            verifier->vendor);
    } else {

        logmsg(MSG_INFO,
            gettext("%s firmware image verifier: "
            "Primary Firmware Image Info pointer is invalid "
            "(0x%04x)\nChecking GUID section.....\n"),
            verifier->vendor, vp_imginfo);

        if (check_guid_ptr(vfi) == FWFLASH_FAILURE) {
            logmsg(MSG_INFO,
                gettext("%s firmware image verifier: "
                "Primary Firmware Image GUID section "
                "is invalid\n"),
                verifier->vendor);
            i = 1;
        } else {
            logmsg(MSG_INFO,
                "%s firmware image verifier: "
                "Primary GUID section is ok\n",
                verifier->vendor);
        }

    }

    bzero(vfi, sector_sz);
    bcopy(&firmware[vs_fia / 4], vfi, sector_sz);

    bcopy(&vfi[XFI_IMGINFO_OFFSET], &i, 4);
    vs_imginfo = MLXSWAPBITS32(i);

    /* for readability only */
    a = (vs_imginfo & 0xff000000) >> 24;
    b = (vs_imginfo & 0x00ff0000) >> 16;
    c = (vs_imginfo & 0x0000ff00) >> 8;
    d = (vs_imginfo & 0x000000ff);

    if ((((a+b+c+d) % 0x100) == 0) &&
        (vs_imginfo != 0x00000000)) {
        logmsg(MSG_INFO,
            "%s firmware image verifier: "
            "Secondary Firmware Image Info pointer is valid\n",
            verifier->vendor);
    } else {
        logmsg(MSG_INFO,
            gettext("%s firmware image verifier: "
            "Secondary Firmware Image Info pointer is invalid "
            "(0x%04x)\nChecking GUID section.....\n"),
            verifier->vendor, vp_imginfo);

        if (check_guid_ptr(vfi) == FWFLASH_FAILURE) {
            logmsg(MSG_INFO,
                gettext("%s firmware image verifier: "
                "Secondary Firmware Image GUID section "
                "is invalid\n"),
                verifier->vendor);
            i++;
        }
    }

    free(vfi);

    if (i == 2)
        logmsg(MSG_WARN, gettext("%s firmware image verifier: "
            "FAILED\n"), verifier->vendor);

    return ((i == 2) ? (FWFLASH_FAILURE) : (FWFLASH_SUCCESS));
}


/*
 * Very simple function - we're given an array of bytes,
 * we know that we need to read the value at offset FLASH_GUID_PTR
 * and jump to that location to read 4x uint64_t of (hopefully)
 * GUID data. If we can read that data, and it matches the default
 * Mellanox GUIDs, then we return success. We need all 4 default
 * GUIDs to match otherwise we return failure.
 */
static int
check_guid_ptr(uint8_t *data)
{
    struct mlx_xfi  xfisect;
    struct mlx_guid_sect    guidsect;

    bcopy(data, &xfisect, sizeof (xfisect));
    bcopy(&data[MLXSWAPBITS32(xfisect.nguidptr) - 16], &guidsect,
        GUIDSECTION_SZ);

    logmsg(MSG_INFO, "nodeguid:  %0llx\n",
        MLXSWAPBITS64(guidsect.nodeguid));
    logmsg(MSG_INFO, "port1guid: %0llx\n",
        MLXSWAPBITS64(guidsect.port1guid));
    logmsg(MSG_INFO, "port2guid: %0llx\n",
        MLXSWAPBITS64(guidsect.port2guid));
    logmsg(MSG_INFO, "sysimguid: %0llx\n",
        MLXSWAPBITS64(guidsect.sysimguid));

    if ((MLXSWAPBITS64(guidsect.nodeguid) == MLX_DEFAULT_NODE_GUID) &&
        (MLXSWAPBITS64(guidsect.port1guid) == MLX_DEFAULT_P1_GUID) &&
        (MLXSWAPBITS64(guidsect.port2guid) == MLX_DEFAULT_P2_GUID) &&
        ((MLXSWAPBITS64(guidsect.sysimguid) == MLX_DEFAULT_SYSIMG_GUID) ||
        (MLXSWAPBITS64(guidsect.sysimguid) == MLX_DEFAULT_NODE_GUID)) ||
        ((((MLXSWAPBITS64(guidsect.nodeguid) & HIGHBITS64) >> 40)
        == MLX_OUI) ||
        (((MLXSWAPBITS64(guidsect.port1guid) & HIGHBITS64) >> 40)
        == MLX_OUI) ||
        (((MLXSWAPBITS64(guidsect.port2guid) & HIGHBITS64) >> 40)
        == MLX_OUI) ||
        (((MLXSWAPBITS64(guidsect.sysimguid) & HIGHBITS64) >> 40)
        == MLX_OUI))) {
        return (FWFLASH_SUCCESS);
    } else {
        return (FWFLASH_FAILURE);
    }
}